Vulnerability Name:

CVE-2000-0535 (CCN-4704)

Assigned:2000-06-12
Published:2000-06-12
Updated:2008-09-10
Summary:OpenSSL 0.9.4 and OpenSSH for FreeBSD do not properly check for the existence of the /dev/random or /dev/urandom devices, which are absent on FreeBSD Alpha systems, which causes them to produce weak keys which may be more easily broken.
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-Other
Vulnerability Consequences:Gain Access
References:Source: CCN
Type: FreeBSD Security Advisory FreeBSD-SA-00:25
FreeBSD/Alpha platform lacks kernel pseudo-random number generator, some applications fail to detect this

Source: CCN
Type: NetBSD Security Advisory 2000-007
bad key generation in libdes if no /dev/urandom

Source: FREEBSD
Type: Patch, Vendor Advisory
FreeBSD-SA-00:25

Source: MITRE
Type: CNA
CVE-2000-0535

Source: CCN
Type: OSVDB ID: 3938
OpenSSL and OpenSSH /dev/random Check Failure

Source: BID
Type: Patch, Vendor Advisory
1340

Source: CCN
Type: BID-1340
FreeBSD Alpha Port Lack Of /dev/random and /dev/urandom Vulnerability

Source: XF
Type: UNKNOWN
freebsd-alpha-weak-encryption(4704)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:openssl:openssl:0.9.4:*:*:*:*:*:*:*

  • Configuration 2:
  • cpe:/o:freebsd:freebsd:4.0:alpha:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:5.0:alpha:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/o:freebsd:freebsd:4.0:alpha:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:5.0:alpha:*:*:*:*:*:*
  • AND
  • cpe:/o:netbsd:netbsd:*:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    openssl openssl 0.9.4
    freebsd freebsd 4.0 alpha
    freebsd freebsd 5.0 alpha
    freebsd freebsd 4.0 alpha
    freebsd freebsd 5.0 alpha
    netbsd netbsd *